---
product_id: 33267140
title: "Humboldts Secret Base A & B Liquid Hydroponic Fertilizer | Complete Hydroponic Nutrients for Indoor and Outdoor Plants | Supports Healthy Vegetative Growth and Flowering Stage | 32 Ounce Set"
brand: "humboldts secret"
price: "€ 78.81"
currency: EUR
in_stock: true
reviews_count: 8
category: "Humboldts Secret"
url: https://www.desertcart.it/products/33267140-humboldts-secret-base-a-and-b-liquid-hydroponic-fertilizer-complete
store_origin: IT
region: Italy
---

# Full-spectrum macro nutrients 64 fl oz liquid formula 2-part easy mix system Humboldts Secret Base A & B Liquid Hydroponic Fertilizer | Complete Hydroponic Nutrients for Indoor and Outdoor Plants | Supports Healthy Vegetative Growth and Flowering Stage | 32 Ounce Set

**Brand:** humboldts secret
**Price:** € 78.81
**Availability:** ✅ In Stock

## Summary

> 🌱 Unlock your garden’s secret weapon—grow smarter, not harder!

## Quick Answers

- **What is this?** Humboldts Secret Base A & B Liquid Hydroponic Fertilizer | Complete Hydroponic Nutrients for Indoor and Outdoor Plants | Supports Healthy Vegetative Growth and Flowering Stage | 32 Ounce Set by humboldts secret
- **How much does it cost?** € 78.81 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.it](https://www.desertcart.it/products/33267140-humboldts-secret-base-a-and-b-liquid-hydroponic-fertilizer-complete)

## Best For

- humboldts secret enthusiasts

## Why This Product

- Trusted humboldts secret brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Universal Compatibility:** Perfect for hydroponics, soil, coco coir, pots, and raised beds—grow anywhere, anytime.
- • **Clean & Clog-Free Formula:** pH-balanced and fully water-soluble to keep your irrigation lines flowing smoothly.
- • **Pro-Level Results at Home:** Trusted by commercial growers and hobbyists alike for fast, visible improvements in just 7 days.
- • **Effortless Precision Feeding:** Mix equal parts Base A & B for consistent weekly nutrition—no guesswork, no stress.
- • **All-in-One Nutrient Powerhouse:** Complete formula with N-P-K plus calcium & magnesium fuels vibrant growth and bold blooms.

## Overview

Humboldts Secret Base A & B is a 64-ounce liquid hydroponic fertilizer set delivering a balanced, full-spectrum nutrient formula designed for all plant types and growing methods. Its easy two-part system simplifies feeding routines while supporting healthy vegetative growth and flowering stages. Compatible with hydroponics, soil, and coco coir, this pH-balanced, water-soluble formula ensures clean application and professional-grade results in both indoor and outdoor gardens.

## Description

desertcart.com : Humboldts Secret Base A & B Liquid Hydroponic Fertilizer | Complete Hydroponic Nutrients for Indoor and Outdoor Plants | Supports Healthy Vegetative Growth and Flowering Stage | 32 Ounce Set : Patio, Lawn & Garden

Review: Hugely Successful Grows with Humboldt's Secret - I use the whole Humboldt's Secret nutrient line on plants grown indoors in tents with automated lighting, circulation and exhaust fans and manual feeding, watering, temperature and humidity controls. My flowers are cup quality, every time. Top quality nutrients, broad spectrum, easy schedule and dosing and super reasonable compared to other brands with comparable offerings. On average, I'd say my return on investment in yield:nutrient is about 50:1. Hard to argue that. I'm a believer.
Review: Came in great shape works as labeled - I’ve been using these for my “tomato’s” and honestly works great makes your plant grow like crazy if it’s your first time maybe try there stater kit

## Features

- Fuel Plants With Complete Nutrition: Humboldts Secret Base A and B delivers a full-spectrum formula with nitrogen, phosphorus, potassium, calcium, and magnesium. These premium plant nutrients support steady development, vibrant leaves, and bold blooms for vegetables, herbs, flowers, and indoor plants. Our formula is ideal for those who want lasting plant health and consistent feeding every single week.
- Simplify Your Feeding Routine: Our easy two-part system requires no complex schedules or guesswork. Just mix equal parts of Base A and B with every watering. This consistent approach supports better absorption and stronger plants across hydroponic gardening, coco coir, or traditional soil setups. Measuring and mixing take just seconds each time.
- Compatible With Any Grow Setup: Humboldts Secret nutrients are built for results in deep water culture, aquaponics, pots, raised beds, or coco. Our Base A and B are trusted as reliable hydroponic nutrients by both home growers and commercial cultivators. Works great with timers, tanks, or hand watering systems.
- Professional Results Without the Hassle: Our pH-balanced, fully water-soluble formula mixes fast and clean. It won’t clog lines or leave residue, making it ideal for hand-watering or automated systems. Humboldts Secret delivers dependable liquid plant food for every stage of plant development. Start seeing results in just a week.
- Support Every Plant With One Formula: From leafy greens and flowering plants to trees, herbs, and houseplants, our Base A and B system delivers the core nutrients all plants need. Use this proven fertilizer for indoor plants across your entire garden for consistent, visible results. Safe for hydroponics, soil, containers, or beds.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B01IM88KKI |
| Best Sellers Rank | #6,361 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #213 in Garden Fertilizers |
| Brand | Humboldts Secret |
| Customer Reviews | 4.5 4.5 out of 5 stars (3,352) |
| Is Discontinued By Manufacturer | No |
| Item Form | Liquid |
| Item Weight | 2 pounds |
| Item model number | 4316245515 |
| Liquid Volume | 64 Fluid Ounces |
| Manufacturer | Humboldts Secret |
| Number of Items | 1 |
| Package Dimensions | 8.31 x 7.95 x 5.12 inches |
| Specific Uses For Product | Hydroponics |
| UPC | 648260730437 |
| Unit Count | 64.0 Fluid Ounces |

## Product Details

- **Brand:** Humboldts Secret
- **Item Form:** Liquid
- **Item Weight:** 32 Ounces
- **Liquid Volume:** 64 Fluid Ounces
- **Specific Uses For Product:** Hydroponics

## Images

![Humboldts Secret Base A & B Liquid Hydroponic Fertilizer | Complete Hydroponic Nutrients for Indoor and Outdoor Plants | Supports Healthy Vegetative Growth and Flowering Stage | 32 Ounce Set - Image 1](https://m.media-amazon.com/images/I/71TqEQG6ueL.jpg)

## Questions & Answers

**Q: What is the Nitrogen break down on the label?**
A: NPK of Base A and B is 4-0-1 and 1-4-2, respectively, from Nitrate Nitrogen.

**Q: How do I know how much to use in my tower garden?**
A: We used 400 ml each if tub is full (20 gallon) to start. Then 200 ml once a week and that worked for us. If your plants aren’t producing they may need more nutrients.

**Q: Is this post sold as  2 32 oz containers of base a and base b? or two 16 oz containers of base a and  base b?**
A: It is 2 bottles each contains .946 liters or 32 ozs

**Q: Does this nutrient line work well in soil?**
A: I have been using these along with Golden Tree, SuperThrive, Heavy Boost & an enzyme blend.  I use this combination every other watering.  The alternate watering I use the Fox Farm nutrients.  Last crop was excellent.  This crop may be even better!  Will most likely continue using these 2 nutrient sustems.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Hugely Successful Grows with Humboldt's Secret
*by J***Z on January 20, 2026*

I use the whole Humboldt's Secret nutrient line on plants grown indoors in tents with automated lighting, circulation and exhaust fans and manual feeding, watering, temperature and humidity controls. My flowers are cup quality, every time. Top quality nutrients, broad spectrum, easy schedule and dosing and super reasonable compared to other brands with comparable offerings. On average, I'd say my return on investment in yield:nutrient is about 50:1. Hard to argue that. I'm a believer.

### ⭐⭐⭐⭐⭐ Came in great shape works as labeled
*by J***H on December 23, 2025*

I’ve been using these for my “tomato’s” and honestly works great makes your plant grow like crazy if it’s your first time maybe try there stater kit

### ⭐⭐⭐⭐⭐ ...
*by K***R on January 15, 2026*

Great product

## Frequently Bought Together

- Humboldts Secret Set of A & B Liquid Hydroponics Fertilizer - World's Best Nutrient System – Hydroponic Nutrients for Outdoor, Indoor Plants – Supports Vegetative and Flowering Stages of Plants
- General Hydroponics pH Control Kit For A Balanced Nutrient Solution
- VIVOSUN Digital pH and TDS Meter Kits, 0.01pH High Accuracy Pen Type pH Meter ± 2% Readout Accuracy 3-in-1 TDS EC Temperature Meter for Hydroponics, Pool and Aquarium, Yellow Blue, UL Certified

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*Product available on Desertcart Italy*
*Store origin: IT*
*Last updated: 2026-02-19*